Closure fastener



CLOSURE FASTENER Filed Noy. 22, 1955 Patented Mar. 5, 19735 This invention relates to the class of closure fasteners and has as itsrobjectthe provision of a device of this character especially. adapted for use with windows for securing the latter locked.

More specifically the invention comprises a locking mechanismV comprising a bo-lt movable outwardly from a casing into engagement with al c means `for eiectivelypreventing jimmying of the lock.

The invention together withits objects and advantages will be best understood from a study of Figure 2 is a sectionalvi'ew through the lock with one bolt in operative engagement with the keeper.

Figure Bis a View similar to Figure Zand showing the arcuate bolt in operative position for drawing the lock parts closer together.

Y Figure 4 is a bottom plan view of the device and Figure 5 is an end elevational view of the bolt,

' the casing therefor and associated parts.

als it will be seen that the lock comprises a suitable casing havingattaching flanges 11 whereby it may be readily secured to the ltop rail 12 of thelower sliding sash indicated generallyby the reference numeralV 13. Rockably mounted transversely of thecasing 10 adjacent thefopen side thereof is a shaftl14 on which is loosely pivoted a locking bolt 15 that is normally urged outwardlyof the casing 10, or to a projected position through the medium of a suitable coil' spring 16 one end of which as clearly shown in Figure 2 bears behind the boltr15 and the other end of which bears against a suitable ledge 17 provided atthe rear or closed end'of the casing 10. VThe bolt 15 as shown is of somewhat segmental shape in cross section and is adapted to project into a keeper 18, which latter, as shown is o-f casing like construction and is provided with a suitable flange 19 whereby.` it may be securedthroughthe medium of suitable fastening elements ltothe lower rail 12a of the upper sliding vsash .13ct.V

YAs clearly shown in Figure 2V the bolt 15 is provided With asuitable slot 20 eifectively located to prevent a separation of the bolt .and keeper by means of a jimmy orother tool when inserted bes pmltdwm NRJV `Application November 22, 1933, lSerial No.

' 4 Claims; 'teresa-11)' tween the window frame as is often eiective in Y vg'etherl Referring to the drawing by reference numer 'Having' thus described `the invention,

obtaining an opening of a windowrequipped with locks of the type now generally employed. V VA second or auxiliary bolt 21 is provided and has an arcuate portion as shown. The bolt 21 is secured through the medium of a pin 22 to `the shaft 14 and when projected linto the keeper r13 upon rotation of the shaft14 in a clockwise direction is adapted to engage a Akeeper pin 23 provided interiorly of the keeper 18 ina manner shown in Figure 3 `for drawing the window frames closer together and more effectively lock the Window.

Provided on onevend of the bolt 15 is apin 24 that operates in a notch 25 provided adjacent v the pivotedend of a -bolt 21. It will thus `be? seen that when the handle or linger piece 26 provided on one end of the shaft 14 is swung toA the dotted line position shown in Figure 1 the bolt 21 will beprojected beyond the bolt 15 in a'manner to engage the pin 23, and the cam actionof the bolt 21 `on the' pin 23 during the extended projection thereof as just described will serve to draw the parts of the closure, in the present instance the window sashescloser to` Also, when the handle .or finger piece 26 is swung in` 'an' anti-clockwise vdirection causing the bolt 21 to swing therewith the notch portion'25v of the bolt will engageV the pin 24 for ,transmitting movement of the bolt- 21 to the bolt 15 to cause the latter to also swingl in an anticlockwise direction out` of engagement with'the keeper 18 for unlocking the window. f whatv is claimed as new is: y Y

1. Aclosure fastener comprising a locking bolt movable in a rcurved path, a rockably ymounted shaft about whichthe bolt moves as la. pivot,

spring means engaged with the bolt for normally urging it to projected position, a second locking boltxed to the shaft and movable therewith ina' curved path, 'the second bolt having a notched vportion adjacentits pivoted end, and the first named bolt having a pin extending therefrom andoperating in the notch `portionof the secv ond named bolt 'for transmitting movement of theshaft to the rst named bolt for simultane- Vously retracting both of said bolts, and a handle means for normally holding the rst bolt inV projected position, and interengaging means on the spring bolt and said second bolt for transmitting movement of the second bolt to the rst bolt to retract the rst bolt when the second bolt is retracted.

3. In a lock' of the class described, a casing, a shaft supported for rocking movement in the casing and having one end projecting therefrom, a handle connected with said projecting end, a curved locking bolt secured to the shaft, a second bolt of substantially segmental shape rotatablyvk mounted on said shaft, a spring for normally holding the second bolt in projected positionl and a pin carried by the second bolt for moving the curved bolt into partly projected position when the spring has projected the second bolt and said pin retracting the second bolt when the i curved bolt has been manually moved to retracted position. f

4. In a lock of the class described, a casing, a shaft supported for rocking movement in the casing and having one end projecting therefrom, a handle rising from said projecting end, a curved locking bolt secured to Vthe shaft, a second bolt of substantially segmental form rotatably mounted on said shaft, aspring for normally holding the second bolt in projected position, a pin carried by the second bolt for movingthe curved bolt into ypartly projected position when the spring has projected the second bolt and said pin re- ,tracting the second bolt when the curved bolt the space between the casing and a keeper member when the second` bolt in projected position.

' WILLIAM J. GOODMAN.

JOHN W.v LANG. 

